@Dr Atul G- LNG @Ankur Bawiskar 

Thank you for prompt response, I have figured out an OOB acl on attachment table specifically on legal matter table, and since attachments from attachment variable will be stored as "ZZ_YYtableName" due to which OOB acl is failing as it is checking for "tableName".

We can do for HI ticket and ask to fix, or we can just have custom acl with expected condtion created bcus we can't change OOB acl bcus it will ditrub oob function, 

@Kiran Maruthi 

ACL creation won't lead to attachment deletion.

what's the ACL script doing?

Since this is OOB and if you are sure what's the fix then you can proceed.

If my response helped please mark it correct and close the thread so that it benefits future readers.

@Ankur Bawiskar 

Yeah, intially I thought attachment is getting deleted, apparently it's not giving read access on that attachment to users since acl condition is based on table name, as mentioend.

@Kiran Maruthi 

Does it have admin overrides checkbox uncheck?

Even for admin the variable is not seen?

If my response helped please mark it correct and close the thread so that it benefits future readers.

@Ankur Bawiskar - Yes it is not admin overriden, they have given this bcus legal space is more secure may be.